Hello,
Anyone has an algorithm for a sepic boost converter in picbasic ?
I have written a function that increments by one the duty cycle, but after further testing it is not a fats way to reach the necessary output. I have a voltage check on the output only (12v) and the duty cycle varies according to the output .
here is the code I have:
there must be better ways to accomplish thisCode:VoltageCheck:
ADCON0.2 = 1 'Start Conversion
adcin 4,VoltageInput
If voltageInput < voltageREF then ' voltageREF is 75 for 12v dc
VoltageDiff = VoltageREF - VoltageInput '=150+(150-115)=185
DutyCycle = voltageREF + ( voltageREF - VoltageDiff)
DutyCycle = DutyCycle/255 *100
HPWM 1,DutyCycle,Frequency 'channel, dutycycle, frequency
pause 20
ENDIF
If voltageInput = voltageREF then
HPWM 1,DutyCycle,Frequency 'channel, dutycycle, frequency
pause 20
else
VoltageDiff = VoltageInput - VoltageREF '=127-(182-127)
DutyCycle = voltageREF - ( VoltageDiff - voltageREF )
DutyCycle = DutyCycle/255 *100
HPWM 1,DutyCycle,Frequency 'channel, dutycycle, frequency
pause 20
endif
return
regards,
K
